33212030112 has 144 divisors (see below), whose sum is σ = 95995186560. Its totient is φ = 10889894400.

The previous prime is 33212030051. The next prime is 33212030113. The reversal of 33212030112 is 21103021233.

33212030112 is a `hidden beast` number, since 332 + 1 + 20 + 301 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×33212030112² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (33212030113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10406437 + ... + 10409627.

It is an arithmetic number, because the mean of its divisors is an integer number (666633240).

Almost surely, 2^33212030112 is an apocalyptic number.

33212030112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33212030112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47997593280).

33212030112 is an abundant number, since it is smaller than the sum of its proper divisors (62783156448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33212030112 is a wasteful number, since it uses less digits than its factorization.

33212030112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787 (or 3776 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 33212030112 its reverse (21103021233), we get a palindrome (54315051345).

The spelling of 33212030112 in words is "thirty-three billion, two hundred twelve million, thirty thousand, one hundred twelve".